package com.atguigu.crowd.mvc.config;

import com.atguigu.crowd.entity.Admin;
import com.atguigu.crowd.entity.Role;
import com.atguigu.crowd.service.api.AdminService;
import com.atguigu.crowd.service.api.AuthService;
import com.atguigu.crowd.service.api.RoleService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.stereotype.Component;

import java.util.ArrayList;
import java.util.List;

/**
 * information
 * Created by Administrator on 2020/3/26.
 */
@Component
public class CrowdUserDetailsService implements UserDetailsService{

    @Autowired
    private AdminService adminService;
    @Autowired
    private RoleService roleService;
    @Autowired
    private AuthService authService;

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        //根据账号名称查询admin对象
        Admin admin = adminService.getAdminByLoginAcct(username);

        //2.获取adminId
        Integer adminId = admin.getId();

        //3.根据adminId查询角色的信息
        List<Role> assignedRoleList = roleService.getAssignedRole(adminId);

        //4.根据adminId查询权限信息
        List<String> authNameList = authService.getAssignedAuthNameByAdminId(adminId);

        //5.创建集合对象用来存储GrantedAuthority
        ArrayList<GrantedAuthority> authorities = new ArrayList<>();

        //6.存入角色信息
        for (Role role:assignedRoleList){

            String roleName = "ROLE_"+role.getName();
            SimpleGrantedAuthority simpleGrantedAuthority = new SimpleGrantedAuthority(roleName);

            authorities.add(simpleGrantedAuthority);

        }

        //7.遍历authNameList存入权限的信息
        for (String authName: authNameList){
            SimpleGrantedAuthority simpleGrantedAuthority = new SimpleGrantedAuthority(authName);
            authorities.add(simpleGrantedAuthority);
        }
        //8.封装SecurityAdmin对象
        SecurityAdmin securityAdmin = new SecurityAdmin(admin, authorities);

        return securityAdmin;
    }
}
